摘要
以某隧道弃渣场为例,通过弃渣颗粒分析、堆积模型试验、自燃倾向性分析和等温吸附测试等,从弃渣堆积形态和粒度特征、弃渣自燃倾向性以及吸附能力等方面探究了该弃渣场的自燃成因。结果表明,在特定堆积环境下,弃渣中易燃炭质物、硫铁化合物与氧气在一定条件下发生低温氧化,是弃渣自燃的主要成因。综合弃渣场水文地质条件和污染状况,提出了火源探测、灭火、截排水及水体污染治理和复绿紧密结合的自燃治理及生态修复一体化方案。
The causes of spontaneous combustion were analyzed for a tunnel waste dump in terms of shape of waste stacks, particle size characteristics, spontaneous combustion tendency and adsorption capacity of waste by performing particle size analysis, stacking model test, spontaneous combustion tendency analysis and isothermal adsorption test. The results show that the main reason for the spontaneous combustion of waste is that a low-temperature oxidation of flammable carbonaceous matter, sulfur and iron compounds, due to the reaction with oxygen under some certain conditions. With the hydrogeological conditions and pollution status of the waste dump taken into a comprehensive consideration, an integrated scheme of spontaneous combustion treatment and ecological restoration is put forward, including fire source detection, fire extinguishment, interception and drainage, water pollution management and green restoration.
作者
石容丹
刘发林
朱文卿
张良平
易菲霆
SHI Rong-dan;LIU Fa-lin;ZHU Wen-qing;ZHANG Liang-ping;YI Fei-ting(Central South University of Forestry and Technology,Changsha 410004,Hunan,China;Hunan Police Academy,Changsha 410138,Hunan,China;School of Geosciences and Info-physics,Central South University,Changsha 410083,Hunan,China;The Coal Geological Exploration Institute of Hunan Province,Changsha 410014,Hunan,China)
出处
《矿冶工程》
CAS
CSCD
北大核心
2022年第4期30-34,42,共6页
Mining and Metallurgical Engineering
基金
湖南省重点研发计划项目(2022SK2090)
湖南省地质院青年科技项目(2021YSP-10)。
关键词
隧道
弃渣
黑色岩系
自燃成因
自燃治理
生态修复
tunnel
waste
black rock series
spontaneous combustion cause
spontaneous combustion treatment
ecological restoration
